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Is the center of mass between Earth and the sun exactly half way between the two?
No, the center of mass between Earth and the sun is not exactly halfway between the two because the sun is much more massive than Earth. The center of mass is closer to the center of the sun, but it is not exactly at the halfway point.
The Sun is located slightly off-center from the middle of each planet's orbit?
This off-center position is due to the gravitational pull of the planets affecting the Sun's position. The Sun's gravity causes the planets to orbit around it, but the planets' gravitational pull also affects the Sun, causing it to be slightly off-center. This is known as the barycenter, or center of mass, of the solar system.
Why is the barycenter of the earth's moon system located inside earth?
The barycenter of the Earth-Moon system is located inside Earth because the Earth is significantly more massive than the Moon, with a mass about 81 times that of the Moon. The barycenter is the center of mass around which both bodies orbit, and since the Earth's mass dominates, this point is situated about 4,600 kilometers from the Earth's center, which is within the Earth's radius. This means that while both the Earth and Moon orbit around this barycenter, it remains inside the Earth due to the Earth's greater gravitational influence.
How long does it take Neptune to complete its orbit?
Neptune has completed MANY orbits around the Sun since its formation. However, an interesting note is that since its "discovery" in September of 1846, it has not yet completed one orbit, which takes 164.8 Earth years. This will occur in June, 2011.
Do moons and asteroids orbit the sun?
Asteroids orbit the sun. Moons orbit planets and planets orbit the sun. So you could say the moons orbit the sun. However, moons are kept in their orbits by the gravity of their planet and planets are kept in orbit by the gravity of the sun. So in that sense, moons do not orbit the sun.
Can a star's wobble become so big that it seems to orbit around nothing?
Yes. That point of "nothing" between the star and the object causing the orbit is called the barycenter, the common center of mass of the two objects. Such as case exists in our solar system; the barycenter between the sun and Jupiter lies just outside of the sun. The case is even more pronounced in binary star systems, which two stars orbit their common center of mass.
Is it likely that the sun will orbit the earth?
Technically, no object orbits the other; instead, they orbit their mutual "barycenter", which is a balance between the masses of the two objects. For example, the Earth and the Moon both orbit their "barycenter", which is still within the volume of the Earth. (That's why the Earth is the planet and the Moon is the satellite, instead of us being co-planets.) Because the Sun is SO massive and the planets so relatively puny, the barycenter of the Sun-Earth system is pretty much at the center of the Sun; the Sun itself wobbles an incredibly tiny amount. But that star-planet wobble is sometimes enough for us to detect it; that's how the first dozen or so extra-solar planets were discovered, because of the gravitational wobble caused by the planet!
Does the moon revolve round the planets?
Moons orbit planets Or rather moons and planets orbit their barycenter.
Does the sun move in an elliptical orbit or does the moon?
Both the Earth and the Moon move in the universe. Earth and Moon actually orbit their common center of mass. Together, the Earth and the Moon orbit the Sun, which itself is moving in the universe.
What is a barycenter?
A barycenter is the point around which two or more celestial bodies orbit. It is the center of mass of the system, meaning that the bodies involved orbit around this common point due to the gravitational forces acting between them. The barycenter may not always coincide with the center of one of the bodies, especially if they have different masses.
How many times does the moon orbit the sun?
No one knows because no one was alive at the beginning so we can only guess how old the earth is. the moon goes around the earth once a day. the dinosaurs were born trillions of years ago, do the math!
Why is the Moon's gravity has greater effect on earth's ocean tides than the sun's gravity?
This is true because the moon is much closer to earth. Gravitational attraction is in inverse proportion to the square of the distance between two point masses like the sun and earth. Even though the sun is huge, it is also very far away. The earth and moon actually orbit each other; they orbit a common point called the barycenter. The barycenter is within the body of the earth, and it moves in such a way that it is always between the centers of the earth and moon.
Does the sun orbit inside the solar system I know that it rotates in its axis every 26 earth days?
The sun really doesn't orbit inside the solar system; all of the other objects in the solar system orbit around the sun. In a strange way, you can think of the sun and other objects orbiting around each other, in the sense that the earth and moon orbit a mutual center of gravity called the barycenter. But the sun is so much more massive than everything else combined that this idea isn't very useful.
How do planets orbit according to law?
The planets and the Sun orbit around each others common center of gravity referred to as the barycenter. Think of the planets as free falling objects. The Earth, as all of the other planets, are actually falling toward the center of the Sun's gravity. That is to say, for every one foot they fall toward the Sun, the Sun moves one foot out of the way.
Why cant earth called the natural satellite of moon?
The Earth doesn't orbit the Moon, and the Moon doesn't orbit the Earth; instead, both of them orbit their common center of mass, the "barycenter". The barycenter of the Earth-Moon system is INSIDE the Earth - so the Moon is a satellite of the Earth, not the other way around. If the barycenter of the Earth-Moon system were outside of the Earth, in space between them, then technically they would be "co-planets", not a planet and a moon.
Is the center of mass between Earth and the sun exactly half way between the two?
No, the center of mass between Earth and the sun is not exactly halfway between the two because the sun is much more massive than Earth. The center of mass is closer to the center of the sun, but it is not exactly at the halfway point.
What is the barycenter of the solar system?
The barycenter (or barycentre; from the Greek βαρύκεντρον) is the point between two objects where they balance each other. In other words, it is the center of gravity where two or more celestial bodies orbit each other. When a moon orbits a planet, or a planet orbits a star, both bodies are actually orbiting around a point that lies outside the center of the greater body. For example, the moon does not orbit the exact center of the earth, instead orbiting a point outside the earth's center (but well below the surface of the Earth) where their respective masses balance each other. The barycenter is one of the foci of the elliptical orbit of each body. It seems to me then, that each planet has its own different barycenter with the Sun. It is a relation between two objects, and since their are nine planets I don't think the term applies to an overall relation between the Sun and all the planets at once. On the other hand, the definition above does say "...where two or more celestial bodies orbit each other." It is true that the planets are not orbiting one another, but each of the planets is affected by every other as well as by the sun. There might therefore be a single solar system barycenter, and it would likely never leave its wandering path deep within the sun. I don't think it's an idea that will have much use any time soon.
